Journal of Environmental Management,
Journal Year:
2025,
Volume and Issue:
383, P. 125394 - 125394
Published: April 22, 2025
Microplastics
and
nanoplastics
(MNPs)
are
emerging
contaminants
in
drinking
water
sources
that
pose
serious
risks
to
human
health
ecosystems.
Several
removal
strategies,
such
as
adsorption,
exist
but
present
challenges
for
their
industrial
scalability.
This
review
provides
a
concise
overview
of
MNP
adsorption
mechanisms
highlights
the
limited
critical
exploration
column
literature,
emphasizing
its
importance
large-scale
applications.
Special
attention
is
given
carbon-based
materials
due
cost-effectiveness,
environmental
friendliness
sustainability.
Other
adsorbents
(e.g.,
metal-organic
frameworks,
clays)
also
discussed
promising
performance
realistic
matrixes.
To
predict
optimize
efficiency
adsorbents,
leading
simulation
models
reviewed.
Taken
together,
this
work
comprehensive
fundamental
factors,
mechanisms,
adsorbent
selection
experimental
conditions,
adsorption.
By
highlighting
underexplored
area
column-based
processes,
it
valuable
information
advance
viable
industrial-scale
solution
contamination.
Polymer Bulletin,
Journal Year:
2024,
Volume and Issue:
81(16), P. 14251 - 14305
Published: July 15, 2024
Abstract
Cross-linkers
are
pivotal
to
meliorate
the
attributes
of
biopolymers,
which
exploited
in
biomedical
industries,
and
also
those
intended
as
packaging
supplies.
Genipin
(GN)
is
an
efficacious
cross-linker.
Moreover,
being
naturally
procured,
biodegradable
biocompatible
makes
it
auspicious
candidate
for
food
industries.
Accordingly,
we
attempted
provide
a
comprehensive
review
on
GN
efficient
cross-linker
biopolymers.
Initially,
presented
chief
botanical
sources
GN.
The
extraction
strategies,
adopted
safe
solvents,
were
then
discussed
while
highlighting
their
realized
yields.
proposed
structures,
its
possible
modes
action,
factors
affecting
interactions,
such
pH,
temperature,
concentration
reviewed.
Afterward,
applications
that
mainly
involved
cross-linking
biopolymers
containing
materials
discussed.
These
included
tissue
engineering,
wound
dressings,
drug
delivery,
applications.
capability
activate
chitosan
gelatin,
into
covalently
reactive
enzyme
immobilizers
was
other
important
applications,
exploiting
colorant
foods
textiles
incorporating
altered
biosensors,
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(19), P. 8321 - 8321
Published: Sept. 25, 2024
The
increasing
disposal
of
emerging
contaminants
in
the
environment
is
a
worldwide
concern
due
to
environmental
impacts,
such
as
toxicity,
hormonal
disorders,
and
bioaccumulation.
persistence
these
pollutants
water
bodies
makes
conventional
pollutant
removal
techniques
inefficient
or
partial,
thus
requiring
development
new,
more
effective,
sustainable
remediation
technologies.
Therefore,
chitosan-based
materials
have
emerged
promising
alternative
for
application
catalysis
contaminant
removal.
biopolymer
has
functional
properties
that
make
it
an
excellent
adsorbent
capable
removing
specific
pollutants,
pharmaceuticals,
microplastics,
agricultural
pesticides,
perfluoroalkyl
poly-fluoroalkyl
substances,
which
are
increasingly
evidence
today.
this
review
recent
advanced
research
into
using
chitosan
manufacture
catalytic
adsorption
offers
innovative
approach
treating
aqueous
environments,
significantly
reducing
their
presence
impact.
It
discusses
advantages
catalyst
its
role
support
catalysts
biocatalysts.
In
addition,
highlights
diversity
physical
forms
chitosan,
particles,
membranes,
hydrogels,
possible
chemical
modifications,
highlighting
effectiveness
applications
wide
range
contaminants.
Frontiers in Chemistry,
Journal Year:
2025,
Volume and Issue:
13
Published: April 11, 2025
Introduction
Triclosan
is
a
common
antibacterial
drug
identified
as
major
contaminant
in
South
African
waters,
notably
Gauteng
and
KwaZulu
Natal
provinces.
This
comes
from
personal
care
products
pharmaceuticals.
It
has
been
frequently
detected
local
streams
wastewater
treatment
plants,
posing
threat
to
aquatic
ecosystems
human
health.
Studies
have
emphasised
the
necessity
of
addressing
presence
triclosan
water
bodies
lessen
its
harmful
impacts
on
environment.
Methods
In
this
study,
NaAlg/MnS
x
bio-nanocomposite
hydrogel
beads
incorporated
with
different
amounts
MnS
NPs
(0.02–0.2
g)
were
synthesised
via
ionic
gelation
method
employed
an
adsorbent
for
removal
aqueous
solutions.
The
surface
charge,
morphology,
thermal
stability,
crystallinity,
functional
groups
characterised
by
SEM
equipped
EDX,
TEM,
Thermogravimetric
analysis,
FTIR,
XRD,
zeta
sizer
(mV).
Results
discussions
experimental
results
demonstrated
that
incorporating
0.02–0.2
g
hydrogels
led
enhanced
mechanical
structure,
porosity,
swelling
ability
adsorption
compared
pristine
NaAlg
hydrogel.
response
methodology
was
used
optimise
parameters
affecting
batch
onto
adsorbent.
Basic
pH
conditions
suitable
removing
solutions
hydrogen
bonding
carboxyl
beads.
pseudo-second
order,
Freundlich,
Sips
models
better
explained
kinetics
equilibrium
isotherm
data.
maximum
capacity
estimated
using
Langmuir
model
132
mg/g.
thermodynamic
(enthalpy
(∆H)
entropy
(∆S))
found
be
44.042
kJ/mol
207.018
J/Kmol,
respectively,
which
means
reaction
endothermic
increases
randomisation
at
solid/liquid
interface.
Gibbs
free
energy
(∆G)
negative
throughout
studied
temperature
range,
indicating
process
spontaneously
energetically
favoured.
